@article{1b275c3a67f44fbd895c657aed2771a2,
title = "The peculiar dipping events in the disc-bearing young-stellar object EPIC 204278916",
abstract = "EPIC 204278916 has been serendipitously discovered from its K2 light curve that displays irregular dimmings of up to 65 per cent for ≈25 consecutive days out of 78.8 d of observations. For the remaining duration of the observations, the variability is highly periodic and attributed to stellar rotation. The star is a young, low-mass (M-type) pre-main-sequence star with clear evidence of a resolved tilted disc from Atacama Large Millimeter/submillimeter Array (ALMA) observations. We examine the K2 light curve in detail and hypothesize that the irregular dimmings are caused by either a warped inner disc edge or transiting cometary-like objects in either circular or eccentric orbits. The explanations discussed here are particularly relevant for other recently discovered young objects with similar absorption dips.",
keywords = "Comets: general, Planets and satellites: dynamical evolution and stability, Stars: early-type, Stars: individual: (EPIC 204278916), Stars: peculiar",
author = "S. Scaringi and Manara, {C. F.} and Barenfeld, {S. A.} and Groot, {P. J.} and A. Isella and Kenworthy, {M. A.} and C. Knigge and Maccarone, {T. J.} and L. Ricci and M. Ansdell",
note = "Funding Information: Science via grant NNX13AC07G and by other grants and contracts. This paper additionally makes use of the following ALMA data: ADS/JAO.ALMA#2013.1.00395.S. ALMA is a partnership of European Southern Observatory (ESO, representing its member states), NSF (USA) and NINS (Japan), together with NRC (Canada) and NSC and ASIAA (Taiwan), in cooperation with the Republic of Chile. The Joint ALMA Observatory is operated by ESO, AUI/NRAO and NAOJ. This material is based upon work supported by the National Science Foundation Graduate Research Fellowship under Grant No. DGE-1144469. Funding Information: We gratefully thank the anonymous referee for providing useful and insightful comments which have improved this manuscript. SS acknowledges funding from the Alexander von Humboldt Foundation. CFM acknowledges ESA research fellowship funding. This research has made use of NASA's Astrophysics Data System Bibliographic Services. Additionally, this work acknowledges the use of the astronomy and astrophysics package for MATLAB (Ofek 2014). This paper includes data collected by the Kepler mission. Funding for the Kepler mission is provided by the NASA Science Mission Directorate. Some of the data presented in this paper were obtained from the Mikulski Archive for Space Telescopes (MAST). STScI is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS5-26555. Support for MAST for non-HST data is provided by the NASA Office of Space Science via grant NNX13AC07G and by other grants and contracts. This paper additionally makes use of the following ALMA data: ADS/JAO.ALMA#2013.1.00395.S. ALMA is a partnership of European Southern Observatory (ESO, representing its member states), NSF (USA) and NINS (Japan), together with NRC (Canada) and NSC and ASIAA (Taiwan), in cooperation with the Republic of Chile. The Joint ALMA Observatory is operated by ESO, AUI/NRAO and NAOJ. This material is based upon work supported by the National Science Foundation Graduate Research Fellowship under Grant No. DGE-1144469. Funding Information: We gratefully thank the anonymous referee for providing useful and insightful comments which have improved this manuscript. SS acknowledges funding from the Alexander von Humboldt Foundation. CFM acknowledges ESA research fellowship funding. This research has made use of NASA{\textquoteright}s Astrophysics Data System Bibliographic Services. Additionally, this work acknowledges the use of the astronomy and astrophysics package for MATLAB (Ofek 2014). This paper includes data collected by the Kepler mission. Funding for the Kepler mission is provided by the NASA Science Mission Directorate. Some of the data presented in this paper were obtained from the Mikulski Archive for Space Telescopes (MAST). STScI is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS5-26555. Support for MAST for non-HST data is provided by the NASA Office of Space Funding Information: 1Max-Planck-Institute f{\"u}r Extraterrestriche Physik, D-85748 Garching, Germany 2Scientific Support Office, Directorate of Science, European Space Research and Technology Centre (ESA/ESTEC), Keplerlaan 1, NL-2201 AZ Noordwijk, the Netherlands 3Department of Astronomy, California Institute of Technology MC 249-17, Pasadena, CA 91125, USA 4Department of Astrophysics/IMAPP, Radboud University Nijmegen, PO Box 9010, NL-6500 GL Nijmegen, the Netherlands 5Department of Physics and Astronomy, Rice University, 6100 Main St Houston, TX 77005, USA 6Leiden Observatory, Leiden University, PO Box 9513, NL-2300 RA Leiden, the Netherlands 7School of Physics and Astronomy, University of Southampton, Hampshire SO17 1BJ, UK 8Department of Physics and Astronomy, Texas Tech University, Box 41051, Lubbock, TX 79409-1051, USA 9Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA 10Institute for Astronomy, University of Hawai{\textquoteleft}i at Ma¯noa, Honolulu, HI 96822, USA Publisher Copyright: {\textcopyright} 2018 The Author(s).",
year = "2016",
month = dec,
day = "1",
doi = "10.1093/mnras/stw2155",
language = "English",
volume = "463",
pages = "2265--2272",
journal = "Monthly Notices of the Royal Astronomical Society",
issn = "0035-8711",
number = "2",
}